package 并发编程;

import com.sun.xml.internal.ws.api.model.wsdl.WSDLOutput;

import java.util.HashMap;
import java.util.concurrent.ConcurrentHashMap;

public class DemoMap {

//    ConcurrentHashMap
//    HashMap
    public static void main(String[] args) {
        //sout
        System.out.println("Hello Map");
    }
}
